1.Soak
the dal for atleast 5-6 hours.2.Grind
the dal in paste form with the help of water. Add salt and coriander to give
the nice colour.3.Beat
the dal mixture properly to entrap the air into the mixture.4.Heat
oil in a Kadai for frying.5.With
the help of hand make flat balls and make a hole in the centre.6.Deep
fry the vada and serve hot with sambhar.